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Add unit test for DateTimePicker 6 events #11318

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merged 1 commit into from
May 10, 2024
Merged

Add unit test for DateTimePicker 6 events #11318

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132 changes: 132 additions & 0 deletions src/System.Windows.Forms/tests/UnitTests/System/Windows/Forms/DateTimePickerTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -321,6 +321,132 @@ public void DateTimePicker_BackgroundImageChangedEvent_Raised_Success()
callCount.Should().Be(1);
}

[WinFormsFact]
public void DateTimePicker_BackgroundImageLayoutChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};

control.BackgroundImageLayoutChanged += handler;
control.BackgroundImageLayout = ImageLayout.Center;
callCount.Should().Be(1);

control.BackgroundImageLayoutChanged -= handler;
control.BackgroundImageLayout = ImageLayout.Stretch;
callCount.Should().Be(1);
}

[WinFormsFact]
public void DateTimePicker_ClickEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};

control.Click += handler;
control.OnClick(EventArgs.Empty);
callCount.Should().Be(1);

control.Click -= handler;
control.OnClick(EventArgs.Empty);
callCount.Should().Be(1);
}

[WinFormsFact]
public void DateTimePicker_DoubleClickEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};

control.DoubleClick += handler;
control.OnDoubleClick(EventArgs.Empty);
callCount.Should().Be(1);

control.DoubleClick -= handler;
control.OnDoubleClick(EventArgs.Empty);
callCount.Should().Be(1);
}

[WinFormsFact]
public void DateTimePicker_ForeColorChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};

control.ForeColorChanged += handler;
control.ForeColor = Color.Red;
callCount.Should().Be(1);

control.ForeColorChanged -= handler;
control.ForeColor = Color.Blue;
callCount.Should().Be(1);
}

[WinFormsFact]
public void DateTimePicker_PaddingChangedEvent_Raised_Success()
{
using DateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};

control.PaddingChanged += handler;
control.Padding = new(10);
callCount.Should().Be(1);

control.PaddingChanged -= handler;
control.Padding = new(20);
callCount.Should().Be(1);
}

[WinFormsFact]
public void DateTimePicker_TextChangedEvent_Raised_Success()
{
using SubDateTimePicker control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(EventArgs.Empty);
callCount++;
};

control.TextChanged += handler;
control.OnTextChanged(EventArgs.Empty);
callCount.Should().Be(1);

control.TextChanged -= handler;
control.OnTextChanged(EventArgs.Empty);
callCount.Should().Be(1);
}

[WinFormsTheory]
[InlineData(ControlStyles.ContainerControl, false)]
[InlineData(ControlStyles.UserPaint, false)]
Expand Down Expand Up @@ -526,5 +652,11 @@ public class SubDateTimePicker : DateTimePicker
public new bool GetStyle(ControlStyles flag) => base.GetStyle(flag);

public new bool GetTopLevel() => base.GetTopLevel();

public new void OnClick(EventArgs e) => base.OnClick(e);

public new void OnDoubleClick(EventArgs e) => base.OnDoubleClick(e);

public new void OnTextChanged(EventArgs e) => base.OnTextChanged(e);
}
}